Phytochemical combinations that regulate pathological immunity
a technology of pathological immunity and phytochemical combinations, applied in the field of phytochemical formulations, can solve the problems of ineffective prophylactic use, high cost of generic small molecule drugs, toxic, etc., and achieve the effects of reducing or alleviating, preventing, and effectively and synergistically downregulating inflammation in subjects
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example 1
[0169]Freshly isolated human PBMCs were incubated in cell culture medium containing an extract of turmeric, ginger, or a combination of turmeric and ginger extracts, at dilutions ranging from 1:30 to 1:93,750, for 6-7 hours. Cells were also incubated in spice-free cell culture medium (negative control) and in medium containing 8.3 ug / ml of curcumin, an inhibitor of inflammatory responses (positive control), for the same time. The cells were then cultured in medium containing lipopolysaccharide (LPS), a pro-inflammatory bacterial product, for 12-15 hours, and the supernatants were harvested and assayed by enzyme-linked immunoassay (ELISA) to measure the content of IL-8, a biomarker for cellular inflammatory response.
[0170]Cell cultures: 10-ml samples of sodium heparin-anticoagulated peripheral venous blood collected from healthy volunteers in Vacutainer collection tubes (Becton Dickinson Biosciences Inc., Rutherford, N.J., USA) and diluted 1:1 in sterile phosphate-buffered saline (PB...
example 2
[0176]Freshly isolated human PBMCs were incubated in cell culture medium containing an extract of turmeric or capsicum (Aqua Spice liquified spice extracts, Kancor Flavors and Extracts, LTD, Kerala, India), or a 1:1 combination of turmeric and capsicum extracts, at dilutions ranging from 1:30 to 1:93,750, for 6-7 hours. Cells were also incubated in spice-free cell culture medium (negative control), and in medium containing 8.3 ug / ml of curcumin (positive control), for the same time. The cells were then cultured in medium containing LPS for 12-15 hours, and the supernatants were harvested and assayed by ELISA to measure the content of IL-8, a biomarker for cellular inflammatory response, as described in Example 1.
[0177]Results: As shown in FIGS. 2A and 2B, treatment of cells with turmeric and capsicum extracts prior to stimulation with LPS effectively suppressed IL-8 production. Turmeric inhibited LPS-stimulated IL-8 production at dilutions up to 1:18,750 (pcapsicum at a dilution of ...
example 3
[0178]Freshly isolated human PBMCs were incubated in cell culture medium containing an extract of paprika or nutmeg (Aqua Spice liquified spice extracts, Kancor Flavors and Extracts, LTD, Kerala, India), or a 1:1 combination of paprika and nutmeg extracts, at dilutions ranging from 1:30 to 1:93,750, for 6-7 hours. Cells were also incubated in spice-free cell culture medium (negative control) and in medium containing 8.3 ug / ml of curcumin (positive control) for the same time. The cells were then cultured in medium containing LPS for 12-15 hours, and the supernatants were harvested and assayed by ELISA to measure the content of IL-8, a biomarker for cellular inflammatory response, as described in Example 1.
[0179]Results: As shown in FIGS. 3A and 3B, treatment of cells with paprika and nutmeg extracts prior to stimulation with LPS effectively suppressed IL-8 production. Paprika inhibited LPS-stimulated IL-8 production at dilutions of 1:30 and 1:150, but not at 1:750 or higher dilution ...
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